Hi, in my birthday i try have sex with my gf. We could't, i came in the condom, i took it off & i cleaned my penis. I try stick it in again it dint work my penis head dint go in completely, but i never came inside her & she's a virgin. After that day she got her period witch lasted 3 days instead of 5. And she said she's having nauciase simtoms & im scared im 16 could she be pregnant ?